#include "stdio.h"
int main()
{
    //sdasdas
    /*
    sdasddas
    */
    int a = 1;
    double b = 2e2;
    double c = 3.3e3;
    b = 1 * 2 + 3 / 4.0;
    a += 1;
    a /= 1;
    a -= 1;
    a *= 1;
    a %= 5;
    a = a % 5;
    a >> 2;
    a << 2;
    int cd[100];
    char ch = 'z';
    printf("Hello world!\n");
    printf("%d", a);
    return 0;
}